We are proud to announce the immediate availabilty of a library for WHMCS API. WHMCS is a billing and membership application which supports multiple business types and is already integrated with all major payment providers.
It also has an extensive API that allows you to perform multiple functions against the system. Functions include adding clients, creating orders and performing debug. Needless to say, WHMCS is the most complete billing system we have seen to date. It also supports accounts and contacts which was a really neat feature that our clients just love.
We initially designed this library on a project for one of our clients and realised how you guys could benefit so we are deciding to give it out for free. This library will save you time when next you are designing an application for a client or simply trying to extend the functionality of your WHMCS installation.